I am the mother and the father will be taking custody of our daughter. I am giving him a notarized letter until the courts reopen to make the change

Thank you for your question.  It is possible that a notarized letter showing that you consent to the enrollment may be enough, but it may depend on the school district’s own policies.  Have you discussed whether this is a permanent change you are looking to make as far as the custody goes?  A change in custody can be difficult to change once it is finalized, so you want to be sure you have considered all of the potential ramifications.  I recommend meeting with a family law attorney to discuss your options.